formbook | 85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 02:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
Size

846KB
MD5

7bb5958bdb772fe2a32c6f843a0fca11
SHA1

4ae824a146adb569dcff4879c67ed0165149c0f0
SHA256

85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f
SHA512

d44dcb7490901a0411e09b8d4c6ff7ddae6c20e672869425fd9acde5b12bb4c02a5454b69b3fc0a3bb734d46d084d80d3f87e1a298cb76d14444c1798d8ba59f
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLPSCXnXMhPfctdRCU:ffmMv6Ckr7Mny5QLPSaKnBU

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3756-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3756-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4516-14-0x0000000000620000-0x000000000064F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 3756	1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe	87
PID 3756 set thread context of 3520	3756	svchost.exe	56
PID 4516 set thread context of 3520	4516	NETSTAT.EXE	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4516	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3756	svchost.exe
3756	svchost.exe
3756	svchost.exe
3756	svchost.exe
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE
4516	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
3756	svchost.exe
3756	svchost.exe
3756	svchost.exe
4516	NETSTAT.EXE
4516	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	svchost.exe
Token: SeDebugPrivilege	4516	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 3756	1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe	87
PID 1656 wrote to memory of 3756	1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe	87
PID 1656 wrote to memory of 3756	1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe	87
PID 1656 wrote to memory of 3756	1656	85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe	87
PID 3520 wrote to memory of 4516	3520	Explorer.EXE	88
PID 3520 wrote to memory of 4516	3520	Explorer.EXE	88
PID 3520 wrote to memory of 4516	3520	Explorer.EXE	88
PID 4516 wrote to memory of 2084	4516	NETSTAT.EXE	90
PID 4516 wrote to memory of 2084	4516	NETSTAT.EXE	90
PID 4516 wrote to memory of 2084	4516	NETSTAT.EXE	90

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe
  "C:\Users\Admin\AppData\Local\Temp\85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3756
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4516
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1656-5-0x0000000004060000-0x0000000004064000-memory.dmp

Filesize
16KB

Download
memory/3520-15-0x00000000089C0000-0x0000000008B50000-memory.dmp

Filesize
1.6MB

Download
memory/3520-22-0x0000000008C90000-0x0000000008DCB000-memory.dmp

Filesize
1.2MB

Download
memory/3520-20-0x0000000008C90000-0x0000000008DCB000-memory.dmp

Filesize
1.2MB

Download
memory/3520-19-0x0000000008C90000-0x0000000008DCB000-memory.dmp

Filesize
1.2MB

Download
memory/3520-11-0x00000000089C0000-0x0000000008B50000-memory.dmp

Filesize
1.6MB

Download
memory/3756-10-0x0000000002000000-0x0000000002014000-memory.dmp

Filesize
80KB

Download
memory/3756-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3756-7-0x0000000001B00000-0x0000000001E4A000-memory.dmp

Filesize
3.3MB

Download
memory/3756-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4516-13-0x0000000000E60000-0x0000000000E6B000-memory.dmp

Filesize
44KB

Download
memory/4516-14-0x0000000000620000-0x000000000064F000-memory.dmp

Filesize
188KB

Download
memory/4516-12-0x0000000000E60000-0x0000000000E6B000-memory.dmp

Filesize
44KB

Download